Early Reading Diagnostic Assessment®, Second Edition
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Early Reading Diagnostic Assessment®, Second Edition
(ERDA® Second Edition)


Overview: Identify children at risk for reading difficulty or failure

Age Range: Grades K–3

Administration: Paper-and-pencil

Completion Time: 45–60 minutes, including 15–20 minutes for screening

Scores/Interpretation: Grade-based percentiles available for Fall, Winter, and Spring. Criterion-referenced scores: Emerging/below basic, basic, or proficient

Scoring Options: Manual scoring

Publication Date: 2003


Product Details

The ERDA Second Edition, an individually administered diagnostic tool, helps you identify children at risk for reading difficulty or failure. Obtain specific information about a child’s reading skills to help develop targeted, grade-specific instruction.

Use this tool to help you:

  • Evaluate all five essential components of reading, as defined by the National Reading Panel and Reading First
  • Promote reading proficiency by the end of Grade 3
  • Obtain valid, reliable diagnostic information specifying strengths and needs
  • Plan and implement instruction focused on preventing reading failure
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